Im sure this is a trivial problem for many, but not having done this for a while im a bit rusty and cant figure it out

I have the answers to the following question, but i do not know how to calculate them from the first:

Find all the solutions to the following equation

Sin( ((5x)/2) + 15°) = 0.34

Where 0°≤x≥360°

The answers are (1.950749625,58.04925038,145.9507496,202.0492504,2 89.9507496,346.0492504)

My attempt

sin^{-1}(0.34)=19.88

19.88-15 = 4.88

(4.88*2)/5 = 1.95

How are the other answer worked out from here?

Any input appreciated

Thanks